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UNE-ETS 300452:1997
BUSINESS TELECOMMUNICATIONS (BTC). SPECIAL QUALITY VOICE BANDWITH 4-WIre analogue leased line (A4S). Connection characteristics and network interface presentation.
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| Publisher | Asociacion Espanola de Normalizacion y Certificacion (AENOR) |
| Publication Date | 11/20/1997 |
| Page Count | 48 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |